Authorities say Jennifer Kinnarney of South Royalton was a passenger on an ATV driven by 23-year-old Anthony Potwin when the brakes failed as the ATV was going down a steep grade Tuesday afternoon. Potwin lost control of the ATV as it rapidly accelerated and he was unable to negotiate a turn.

The ATV went off the trail and hit several saplings. Both Kinnarney and Potwin were thrown from the vehicle. Police say Kinnarney hit a tree with caused severe trauma.

She was taken by helicopter to Dartmouth Medical Center, where she died from her injuries. Police say neither she nor Potwin were wearing helmets.

High pressure is the dominant weather feature Sunday providing the region with sunshine and warm temperatures. A potent cold front brings widespread showers and storms Monday. There's the risk for those storms to become for severe in the afternoon. Cooler and unsettled weather follows that front.